Ischnochitonidae Dall, 1889
Tripoplax abyssicola (A. G. Smith & Cowan, 1966)
Tripoplax albrechtii (von Schrenck, 1862)
Tripoplax allyni (Ferreira, 1977)
Tripoplax andrijaschevi (Jakovleva, 1952)
Tripoplax attuensis (Clark, 2000)
Tripoplax balaenophila (Schwabe & Sellanes, 2004)
Tripoplax baxteri (Clark, 2000)
Tripoplax beringiana (Clark, 2000)
Tripoplax calypso Clark, 2008
Tripoplax cowani Clark, 2008
Tripoplax ima (Sirenko, 1975)
Tripoplax kobjakovae
Tripoplax lindbergi (Jakovleva, 1952)
Tripoplax regularis (Carpenter, 1855)
Tripoplax thielei (Sirenko, 1975)
Tripoplax trifida (Carpenter, 1864)
